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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOSEPH A. MILLER, of the city, county, and State of New York, have invented a certain new and useful Improvement on Sediment Collectors, applicable to Steam Boilers o r Generators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure 1 represents an elevation of my improved sediment collector; and

Figure 2, a section of steam boiler in'part, with my improvement applied thereto.

Like letters indicate like parts in both figures.

My invehtion relates to a sediment collector applicable to steam generators or boilers, in vwhich vertical Water tubes are used connecting the Water space below a lower tube sheet with the steam-generating space above an upper one; and the nature of my invention consists in a peculiarly constructed loose or detachable tube of pocket character, that is, closed at its bottom, which is preferably of an inverted conical shape andopen at its top, which is made of funnel or flaring form, while the body of the tube is of such diameter relatively to the water tubeit is designed to occupy as, when inserted down within the same, it leaves an annular water space around it open at either end, being also suitably provided with wings, or their equivalents, to insure such position, and of length so as to project through either or both ends of the water tube.

Referring to the accompanying drawing, A3 represents the top, and B3 the bottom tube sheets of a boiler, and C3 vertical water tubes connecting said sheets and establishing communication between the water space below the bottom tube sheet and steam-generating space or'chamber above the top sheet. D" is a pocket tube, of sui'- ficiently less diameter than the water tubes C3, as, when inserted concentrically down within them, it leaves an annular water space, a3, surrounding it and open aty both ends, This tube, D", of which there may be one to each Water tube, may project through both ends of the latter, and is made closed at its bottom, which may be of an inverted conical or other form, but preferably conical to facilitate the entry of thc water up the tubes C, whileits upper end is open and of a iiaringor funnel shape. Said pocket tube, DI, is designed to iit loosely within its water tube, and for this purpose is or may bc provided with wings or projections, b3, that serve to freely suspend and hold it in position, er said wings or their equivalents may bc'separate attachments or be proj eetions from the water tubes.

Situated as represented and described, these pocket tubes, D, will not only collect sediment, saline, mineral, or other impurities gathering at or nea-r the surface of the water, and, being loose, may be removed from time to time and emptied, but they will serve to keep, in a measure, the water tubes clean by diminishingthe water space, and increasing the velocity of the water through the water tubes, and check or prevent' priming by reducing the amount of solid water passing out of the water tubes into the steam-generating space above, besides which said tubes isolate the water into thin sheets 0r annular columns, upon which thc heat acting will more rapidly produce steam than if said columns were solid; a result that will notv only be advantageous on first firing up, but also an after or constant gain.

What I claim, and desire to secure by Letters Patent, is

The sediment collector constructed substantially as herein represented and described for use, in connection with vertical water tubes of a steam boiler, essentially as herein set forth.

y JOSEPH A. MILLER.

Witnesses:

A. LE CLnnc, G. W. REED. 

